<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>自动函数重复输出5次</title>
    <script src="../js/demo5.js"></script>
</head>

<body>
    <div id="app">
        <button onclick="showMsg()">点击显示n行代码</button>
    </div>

</body>

</html>